Tebbitoey



(No Model.)

N. A. POSS.

IRON SHUTTERS.

N0.2'70,047-. Patented Jan. 2, 1883.

:INVENTOR 64 m ATTORNEYS.

UNITED STATES PATENT OFFICE.

NEWMAN A. FOSS,'OF GOLD RUN, lllONTANA TERRITORY.

lRON SHUTTER.

SPECIFICATION forming part of Letters Patent No. 270,047, dated January2, 1883.

Application filed June 26, 1882.

the difficulty experienced in opening such shutters from the outside incase of fire they have been generally condemned.

The object of'my invention is to provide iron shutters that can bereadily opened from the outside, and at the same time more easilyoperated from the inside than the usual hinged shutters.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is an elevation showing a window of a building with my improvedshutters applied thereto, one shutter being shown partially sectional.Fig. 2 is a transverse section on line as w of Fig. 1. Fig. 3 is atransverse section on lineyyof Fig. 1. Fig. 4 is adetail view of thedevices for fastening the cross-bar.

A A are the shutters, which are of ordinary construction, made of twothicknesses of sheetiron, with a space between that may be filled with anon-conductor of heat, if desired. The shutters rest and more upon across bar or track, B, preferably of steel, attached at its ends to thewall of the building. The ends of the bar are slotted, as shown in Figs.1 and 4, and enter loosely through the slotted castings b, that areattached to the wall by bolts a.

On the bolts a, and within the slots of the bar B, are eccentrics 0, bywhich the bar is clamped to the castings. This construction allows thebar to expand from the heat withsquare end is covered usually by ahollow washer, c. g

The supporting-bar B passes between the (No model.)

two sides of each shutter and through an iron box or casing, f, that isfitted within the shut- This casing is held in place by crossbolts, andwithin it are contained sheaves gg, that work upon axles fitted in thecasingf. The sheaves are grooved, and the supportinghar B is formedwitha flange or rib corresponding in form with the groove.

The shutters are preferably made with their inner edges rabbeted to lapone upon the other, and the bar B is provided with a pin, as shown at Z,to prevent each shutter from passing'beyond the center. The shutters arealso provided with small handles both upon the inside and outside, forconvenience in opening and closing them.

The advantages of shutters applied in this manner may be stated asfollows: They can be readily opened from the outside ofthe building incaseof fire or otherwise, it being understood that no fastenings areused, none being required. They can be opened from the inside withperfect ease and safety, even in high winds. The shutters may be appliedto either the insideor the outside of the window. They are free toexpand in case of fire without preventing. their easy operation. Theycan be closed entirely or partly, as desired, in order to admit more orless light. time of storm, can not become loose or be blown down, andthey may be applied to'either new or old buildings.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. The combination, with a rolling shutter made of twothicknesses of metal and having an intermediate space, of the box f,arranged in said space, the grooved sheaves g on axles journaled in saidbox, and the ribbed bar B, as

shown and described.

2. 1n window-shutters, the bar B, sustained at its ends by devicespassing through slots in the bar, so as to allow free expansion and con-NEWMAN ALLEN FOSS.

Witnesses: 7

JOHN M. GRAY, SETH W. EDDY.

They are safe in

